In SX Microcontrollers, SX/B Compiler and SX-Key Tool, phipi wrote: Dan, 'Sorry: I missed the KeyRing part. 'Just a hunch here: Even though you're not using an external resonator, change your comand lines at the program's start to one of the external crystal options (for debugging only). I'm not sure how the SX works internally, but the crystal pins (and, hence, the debugging pathways) might be disconnected when running from an internal clock. -Phil ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=184217#m184370 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2007 (http://www.dotNetBB.com)